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In the article beginning on page 480 in the March 2018 issue, Dr. Wijeysundera’s credentials were listed incorrectly in the byline. They should have appeared as Duminda N. Wijeysundera, M.D., Ph.D., F.R.C.P.C.

In addition, in the second line of text on page 489, only reference 38 should be cited. The citation for reference 4 should be removed.

The authors regret these errors. The online version and PDF of the article have been corrected.